Picture handling: switch to stronger typed offset

Also change the on file XML to be even easier to read by making it a
duration as well (which gets us '32:34 min' instead of un-typed seconds).
This is backwards compatible, it will happily read what was written with
the previous commit).

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/dive.h b/dive.h
index 23278d4a3..be99bffb2 100644
--- a/dive.h
+++ b/dive.h
@@ -289,7 +289,7 @@ struct dive {
 /* picture list and methods related to dive picture handling */
 struct picture {
 	char *filename;
-	int32_t offset;
+	duration_t offset;
 	degrees_t latitude;
 	degrees_t longitude;
 	struct picture *next;